Paladin PVP holy

Afternoon everyone. I'm looking to finish leveling my alt pally for pvp and I was wondering how effective it is to be a Holy pally atm. Strengths and weaknesses and whatnot. Would you guys be willing to please provide me with some knowledge on where we stand in terms of competitive healers? Or should i try going ret? I have a warrior i'm going to partner up with and do 2s and i hear that holy is a safe bet to do this with. suggestions, comments and opinions anyone?